(log9 4^更号27)/3+lg 20+log100 25+5^(log5 2)对数计算题

题目

(log9 4^更号27)/3+lg 20+log100 25+5^(log5 2)对数计算题
(log9 4^更号27)/3+lg 20+log100 25+5^(log5 2)看不懂再Hi我 现场等

答案

(log9 4^更号27)/3+lg 20+log100 25+5^(log5 2)
=(log9 9^3/8)/3+1+lg 2+lg5+2
=3/8÷3+1+1+2
=1/8+4
=4又1/8